orchestral       
adjective uk/ɔːˈkes.trəl/ us/ɔːrˈkes.trəl/
B2 管弦乐队的
connected with or involving an orchestra (= a large group of musicians who play many different instruments together)
  an orchestral arrangement 为管弦乐队而作的编排 
 The orchestral playing was tight and elegant. 管弦乐队的演奏紧凑而优雅。 
 See: orchestra
 - More examples
 - They have annual performances of the composer's major orchestral scores.
 - He entered to rousing orchestral and choral music.
 - She sang "Over the Rainbow" to live orchestral accompaniment.